Results 291 to 300 of about 168,123 (344)
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A microbiological assay for sodium azide
Analytical Biochemistry, 1980Abstract A reproducible and sensitive method is presented for quantitating sodium azide (NaN 3 ) that exploits the fact that NaN 3 inhibits Escherichia coli RNA synthesis. A linear correlation is observed between incorporation of [ 3 H]uridine into a trichloroacetic acid-precipitable form and NaN 3 concentration over a 31- to 2000-μg range of ...
Lynn P. Elwell, Leslie Walton
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Polymerization of nitrogen in sodium azide
The Journal of Chemical Physics, 2004The high-pressure behavior of nitrogen in NaN3 was studied to 160 GPa at 120–3300 K using Raman spectroscopy, electrical conductivity, laser heating, and shear deformation methods. Nitrogen in sodium azide is in a molecularlike form; azide ions N3− are straight chains of three atoms linked with covalent bonds and weakly interact with each other.
Mikhail Eremets +5 more
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Suicidal sodium azide ingestion
Annals of Emergency Medicine, 1987Sodium azide (NaN3) is a highly reactive, toxic, widely used chemical. Although industrial exposure is common, fatal ingestion is rare. We describe the case of a 30-year-old man who ingested 15 to 20 g of sodium azide. He became comatose within two hours and eventually expired from a combination of acidosis, respiratory depression, and ventricular ...
Jonathan Abrams +2 more
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Solubility of Sodium Azide and Alpha-Lead Azide.
Journal of Chemical & Engineering Data, 1966The solubility of sodium azide was determined in water and in 40, 60, 80, and 95.5% ethanol-water mixtures, respectively. The solubilities were first determined by a synthetic method (9) which involved the preparation of a solution of known composition, the saturation point of which was determined by varying the temperature.
Eugene Lieber +3 more
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ChemInform Abstract: THE PHASE TRANSITION IN SODIUM AZIDE
Chemischer Informationsdienst, 1983Sodium azide undergoes a transition from a high-temperature rhombohedral phase to a low-temperature monoclinic phase at 292.2 K. Results of x-ray diffraction studies of the low-temperature phase are reported which indicate that the transition is of the elastic type with the order parameter corresponding to a linear combination of the strains e13 and ...
S. R. Aghdaee, A. I. M. Rae
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Sodium Azide - The Federal Responsibility
SAE Technical Paper Series, 1979The authors discuss present and future Federal involvement in decisions relating to the use of sodium azide to generate gas for air bags and stress the need to establish a perspective from which to examine the raw data concerning the associated health hazards. Several examples are given of other chemicals which present problems in the manufacture, use,
William R. S. Fan, Bruce C. Buckheit
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The reaction of tetrafluorohydrazine with sodium azide
Journal of Inorganic and Nuclear Chemistry, 1966Abstract The reaction of tetrafluorohydrazine with sodium azide at 45–85° produces nitrogen trifluoride, nitrogen and sodium fluoride. The yield of nitrogen trifluoride is pressure dependent and increases almost linearly from 30 per cent at 3 atm to 70 per cent at 8·5 atm.
R.H. Toeniskoetter, F.P. Gortsema
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Thermal decomposition of sodium azide
Thermochimica Acta, 1977The thermal decomposition of sodium azide has been investigated in the temperature range 240–365°C. Three values for the activation energy, 37.0, 59.0 and 14 kcal mol−1 have been obtained depending on the temperature range of study. The mechanism of decomposition seems to involve excited azide ions (through internal conversion) and excitations.
V. Krishna Mohan, V. R. Pai Verneker
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Journal of Physics and Chemistry of Solids, 1963
Abstract : This report includes: Measurement of stacking fault probabilities in bulk specimens by Henry M. Otte, D. O. Welch and G. F. Bolling. In x-ray diffraction measurements of NaN3 it has been noted that after deformation, the line broadening was consistent with that expected from formation of deformation stacking faults.
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Abstract : This report includes: Measurement of stacking fault probabilities in bulk specimens by Henry M. Otte, D. O. Welch and G. F. Bolling. In x-ray diffraction measurements of NaN3 it has been noted that after deformation, the line broadening was consistent with that expected from formation of deformation stacking faults.
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Thermal analysis of sodium azide
Journal of Hazardous Materials, 1994Abstract The thermal reaction and decomposition of sodium azide were affected by the gas species, its pressure, sample type (powdered or tablet), par- ticle size, sample weight, surface heterogeneity, additives, aging, etc. In actual experiments, very complicated problems arose because those effects were combined together.
Kohzi Ochi +3 more
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